1) 3.5-2 1/4=3 1/2-2 1/4=3 2/4-2 1/4=1 1/4
1 1/4*(-5 1/4)=5/4*(-21/4)=-105/16=-6 9/16
2 1/3:(-3/6)=7/3*(-3/6)=-7/6=-1 1/6
-6 9/16+(-1 1/6)=-6 27/48-1 8/48=-7 35/48
2) =-2.11*(14.45+(-4.45))=-2.11*10=-21.1
1) 3.5-2 1/4=3 1/2-2 1/4=3 2/4-2 1/4=1 1/4
1 1/4*(-5 1/4)=5/4*(-21/4)=-105/16=-6 9/16
2 1/3:(-3/6)=7/3*(-3/6)=-7/6=-1 1/6
-6 9/16+(-1 1/6)=-6 27/48-1 8/48=-7 35/48
2) =-2.11*(14.45+(-4.45))=-2.11*10=-21.1